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    Image forming apparatus and an image forming process unit
    1.
    发明授权
    Image forming apparatus and an image forming process unit 有权
    图像形成装置和图像形成处理单元

    公开(公告)号：US06505014B2

    公开(公告)日：2003-01-07

    申请号：US09964794

    申请日：2001-09-28

    申请人： Katsuhiro Aoki ,  Hisashi Shoji ,  Tsukuru Kai ,  Hajime Oyama ,  Noriyoshi Tarumi ,  Takashi Hodoshima ,  Yasuo Miyoshi

    发明人： Katsuhiro Aoki ,  Hisashi Shoji ,  Tsukuru Kai ,  Hajime Oyama ,  Noriyoshi Tarumi ,  Takashi Hodoshima ,  Yasuo Miyoshi

    IPC分类号： G03G1506

    CPC分类号： G03G15/065 ,  G03G13/08

    摘要： An image forming apparatus of the present invention includes an image carrier made up of a conductive base and photoconductive layer and a toner carrier to which a bias for development is applied. The toner carrier conveys toner deposited thereon to a developing position where the toner carrier faces the image carrier, thereby developing a latent image formed on the image carrier. The apparatus effects low-voltage development that protects the image carrier from electrostatic fatigue, obviates background contamination, and realizes image density as high as 0.5 ×10−3 g/cm2 or above in terms of the amount of toner deposition. Further, the apparatus implements faithful development of the latent image by reducing the edge effect. An image forming process unit removable from the apparatus is also disclosed.

    摘要翻译： 本发明的图像形成装置包括由导电基底和光电导层构成的图像载体和施加偏压的调色剂载体。 调色剂载体将沉积在其上的调色剂输送到显影位置，在该显影位置调色剂载体面向图像载体，从而显影形成在图像载体上的潜像。 该装置实现低电压显影，其保护图像载体免受静电疲劳，消除背景污染，并且根据调色剂沉积量实现高达0.5×10 -3 g / cm 2或更高的图像密度。 此外，该装置通过减少边缘效应来实现潜像的忠实发展。 还公开了可从该装置移除的图像形成处理单元。

    Image forming apparatus
    2.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US06901233B2

    公开(公告)日：2005-05-31

    申请号：US10732482

    申请日：2003-12-11

    申请人： Katsuhiro Aoki ,  Tsukuru Kai ,  Hajime Oyama ,  Osamu Ariizumi ,  Hisashi Shoji ,  Takashi Hodoshima ,  Yasuo Miyoshi

    发明人： Katsuhiro Aoki ,  Tsukuru Kai ,  Hajime Oyama ,  Osamu Ariizumi ,  Hisashi Shoji ,  Takashi Hodoshima ,  Yasuo Miyoshi

    IPC分类号： G03G15/06 ,  G03G15/09

    CPC分类号： G03G15/0907 ,  G03G15/065 ,  G03G2215/0177

    摘要： An image forming apparatus of the present invention includes a bias power supply for applying a bias VB to a developer carrier on which a developer is deposited. A charge potential deposited on an image carrier, which faces the developer carrier for forming a latent image thereon, is 400 V or below in absolute value. Assume that the potential of the image carrier is lowered to VL after exposure, that a development potential is |VB−VL|, that the maximum set value of the development potential for development is |VB−VL|max, and that the development potential varies in a range satisfying relations: |VB−VL|≦|VB−VL|max+|VB−VL|max×0.2 |VB−VL|≧|VB−VL|max−|VB−VL|max×0.2 |VB−VL|max≦300 V Then image density varies by a width of 10% of image density corresponding to the maximum set value of the development potential or less.

    摘要翻译： 本发明的图像形成装置包括偏置电源，用于将偏压V B B施加到其上沉积显影剂的显影剂载体上。 沉积在图像载体上的电荷电位，其面向用于在其上形成潜像的显影剂载体，其绝对值为400V或更低。 假设曝光后图像载体的电位降低到V L，则显影电位为| V B -V L | L， 开发发展潜力的最大设定值为| V | B | | | | | | | |，并且显影电位在满足关系的范围内变化：<？ -line-formula description =“In-line Formulas”end =“lead”？> | V ＆lt;＆lt;＆lt;＆lt; L＆gt; | max + | V B＆lt; 行公式“end =”tail“？> <？in-line-formula description =”In-line Formulas“end =”lead“？> | V B B> | B | B || V | B | B || B ||||||||,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, .2 <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> | V B L max <= 300 V <？in-line-formula description =“In-line Formulas”end =“tail”？>然后，图像浓度因 宽度为10％o f图像浓度对应于开发潜力的最大设定值以下。

    Image forming apparatus
    3.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US06721516B2

    公开(公告)日：2004-04-13

    申请号：US10050955

    申请日：2002-01-22

    申请人： Katsuhiro Aoki ,  Tsukuru Kai ,  Hajime Oyama ,  Osamu Ariizumi ,  Hisashi Shoji ,  Takashi Hodoshima ,  Yasuo Miyoshi

    发明人： Katsuhiro Aoki ,  Tsukuru Kai ,  Hajime Oyama ,  Osamu Ariizumi ,  Hisashi Shoji ,  Takashi Hodoshima ,  Yasuo Miyoshi

    IPC分类号： G03G1506

    CPC分类号： G03G15/0907 ,  G03G15/065 ,  G03G2215/0177

    摘要： An image forming apparatus of the present invention includes a bias power supply for applying a bias VB to a developer carrier on which a developer is deposited. A charge potential deposited on an image carrier, which faces the developer carrier for forming a latent image thereon, is 400 V or below in absolute value. Assume that the potential of the image carrier is lowered to VL after exposure, that a development potential is |VB−VL|, that the maximum set value of the development potential for development is |VB−VL|max, and that the development potential varies in a range satisfying relations: |VB−VL|≦|VB−VL|max+|VB−VL|max×0.2 |VB−VL|≧|VB−VL|max−|VB−VL|max×0.2 |VB−VL|max≦300 V Then image density varies by a width of 10% of image density corresponding to the maximum set value of the development potential or less.

    摘要翻译： 本发明的图像形成装置包括用于将偏压VB施加到其上沉积有显影剂的显影剂载体上的偏置电源。 沉积在图像载体上的电荷电位，其面向用于在其上形成潜像的显影剂载体，其绝对值为400V或更低。 假设图像载体的电位在曝光后降低到VL，显影电位为| VB-VL |，显影发展潜力的最大设定值为| VB-VL | max，显影电位 在满足关系的范围内变化：然后图像浓度根据显影电位的最大设定值或更小的图像浓度的10％的宽度变化。

    Development method apparatus, image formation and process cartridge for suppressing variation in toner charge
    4.
    发明授权
    Development method apparatus, image formation and process cartridge for suppressing variation in toner charge 有权
    用于抑制调色剂电荷变化的显影方法装置，图像形成和处理盒

    公开(公告)号：US06658227B2

    公开(公告)日：2003-12-02

    申请号：US10188756

    申请日：2002-07-05

    申请人： Hajime Oyama ,  Tsukuru Kai ,  Katsuhiro Aoki ,  Takashi Hodoshima ,  Yasuo Miyoshi ,  Ichiro Kadota

    发明人： Hajime Oyama ,  Tsukuru Kai ,  Katsuhiro Aoki ,  Takashi Hodoshima ,  Yasuo Miyoshi ,  Ichiro Kadota

    IPC分类号： G03F1508

    CPC分类号： G03G13/08 ,  G03G2215/0636

    摘要： The development is performed under a condition that |Q2|−|Q1|/|Q1≦±0.45. Here, Q1 denotes an average amount of charge on toner held on a development roller and carried toward a development region immediately before development. Q2 denotes an average amount of charge on toner immediately before development held and carried toward the development region in the state immediately after development of an electrostatic latent image on a development drum. This is effective to allow the amount of charge q/m on toner held on the development roller to have a variation rate of 45% or below and an afterimage rate R within 2%.

    摘要翻译： 在| Q2 | - | Q1 | / | Q1 <=±0.45的条件下进行显影。 这里，Q1表示保持在显影辊上的调色剂上的平均充电量，并且紧靠显影前的显影区域携带。 Q2表示紧接在显影鼓上的静电潜像显影后立即显影状态下保持并承载于显影区域的调色剂上的平均电荷量。 这有助于使显影辊上保持的调色剂上的电荷量q / m具有45％以下的变化率和2％以内的残像率R。

    Toner support member and developing device prevented from charging toner by friction
    5.
    发明授权
    Toner support member and developing device prevented from charging toner by friction 有权
    调色剂支撑构件和显影装置防止摩擦使调色剂充电

    公开(公告)号：US06526248B1

    公开(公告)日：2003-02-25

    申请号：US09662550

    申请日：2000-09-15

    申请人： Katsuhiro Aoki ,  Takashi Hodoshima ,  Hajime Oyama

    发明人： Katsuhiro Aoki ,  Takashi Hodoshima ,  Hajime Oyama

    IPC分类号： G03G1508

    CPC分类号： G03G15/0818 ,  G03G15/0928 ,  G03G2215/0607 ,  G03G2215/0634

    摘要： A developing device for an image forming apparatus of the type feeding a one-ingredient or two-ingredient type developer, forming a thin toner layer on a developing roller or toner support member and developing a latent image with the toner layer is disclosed. The toner support member has a surface that is chargeable to the same polarity as toner. The toner support member therefore serves to simply support the toner without electrostatically effecting the toner, so that the development of a latent image is free from the influence of the static electricity of the toner support member. This successfully enhances image quality. A photoconductive element has a coefficient of friction &mgr; confined in the range of 0.1

    摘要翻译： 公开了一种用于成像装置的显影装置，该装置用于给单成分或双成分型显影剂供给，在显影辊或调色剂支持部件上形成薄的调色剂层，并使该调色剂层显影潜像。 调色剂支撑构件具有可与调色剂充电至相同极性的表面。 因此，调色剂支撑构件用于简单地支撑调色剂，而不会静电地影响调色剂，使得潜像的显影不受调色剂支撑构件的静电的影响。 这成功地提高了图像质量。 感光元件的摩擦系数μ限制在0.1 <0.4之间，防止调色剂沉积并污染元件的背景区域。 此外，光电导元件的表面被保护并且其使用寿命延长。 此外，调色剂支撑构件的硬度HS位于通过JIS（日本工业标准）A等级测量的10°<= HS <= 45°的范围内，实现光滑的表面，从而确保均匀的显影特性。 还公开了一种包括显影装置的成像设备。

    Image forming apparatus, developing device therefor and image forming process unit
    6.
    发明授权
    Image forming apparatus, developing device therefor and image forming process unit 有权
    图像形成装置，其显影装置和图像形成处理单元

    公开(公告)号：US06463244B2

    公开(公告)日：2002-10-08

    申请号：US09814726

    申请日：2001-03-23

    申请人： Katsuhiro Aoki ,  Hajime Oyama ,  Takashi Hodoshima

    发明人： Katsuhiro Aoki ,  Hajime Oyama ,  Takashi Hodoshima

    IPC分类号： G03G1508

    CPC分类号： G03G15/0808 ,  G03G2215/0634

    摘要： A developing device for an image forming apparatus includes a developing roller for conveying toner deposited thereon to a developing region where it faces a photoconductive element. A magnet brush roller conveys a two-ingredient type developer, which consists of toner and magnetic particles, deposited thereto to a toner supplying region where it faces the developing roller. In the toner supplying region, only the toner is supplied from the magnet brush roller to the developing roller. The distribution of the number of toner particles for an amount of charge differs from the developing roller to the magnet brush roller.

    摘要翻译： 用于图像形成装置的显影装置包括用于将沉积在其上的调色剂输送到面向感光体​​的显影区域的显影辊。 磁刷辊将由调色剂和磁性颗粒组成的双成分型显影剂输送到其面向显影辊的调色剂供应区域。 在调色剂供应区域中，只有调色剂从磁刷刷送到显影辊。 调色剂颗粒数量的分配不同于显影辊到磁刷辊。

    Developing device, and image forming apparatus and process cartridge using the developing device
    9.
    发明授权
    Developing device, and image forming apparatus and process cartridge using the developing device 有权
    显影装置，以及使用显影装置的图像形成装置和处理盒

    公开(公告)号：US07480475B2

    公开(公告)日：2009-01-20

    申请号：US11363052

    申请日：2006-02-28

    申请人： Yasuo Miyoshi ,  Hajime Oyama ,  Katsuhiro Aoki ,  Hiroshi Ikeguchi ,  Daichi Yamaguchi

    发明人： Yasuo Miyoshi ,  Hajime Oyama ,  Katsuhiro Aoki ,  Hiroshi Ikeguchi ,  Daichi Yamaguchi

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0808 ,  G03G15/0812 ,  G03G2215/0634

    摘要： A developing device including a rotating developing roller bearing toner thereon, capable of developing an electrostatic latent image with the toner; a toner layer forming member configured to form a toner layer on the developing roller, and charge the toner of the toner layer at a nip between the developing roller and the toner layer forming member; and a toner supplying device configured to supply fresh toner to the developing device, wherein a charge quantity (q) of the toner on the developing roller varies according to the following equation q(t)=A·{1−exp(−t/tg)} wherein t represents a nip passing time of the toner on the developing roller, tg represents a time constant of charging the toner, and A represents a constant, and wherein the time constant tg is smaller than a rotation time of the developing roller per rotation;and an image forming apparatus and a process cartridge using the developing device.

    摘要翻译： 一种显影装置，包括在其上承载调色剂的旋转显影辊，能够利用调色剂显影静电潜像; 调色剂层形成部件，被配置为在所述显影辊上形成调色剂层，并且在所述显影辊和所述调色剂层形成部件之间的辊隙处对所述调色剂层的调色剂充电; 以及调色剂供应装置，其被配置为向显影装置供应新鲜的调色剂，其中显影辊上的调色剂的电荷量（q）根据以下等式q（t）= A。{1-exp（-t / tg）}其中t表示调色剂在显影辊上的辊隙通过时间，tg表示对调色剂充电的时间常数，A表示常数，并且其中时间常数tg小于显影辊的旋转时间 每轮 以及使用该显影装置的图像形成装置和处理盒。

    Developing device, image forming apparatus and process cartridge
    10.
    发明申请
    Developing device, image forming apparatus and process cartridge 有权
    显影装置，成像装置和处理盒

    公开(公告)号：US20060008297A1

    公开(公告)日：2006-01-12

    申请号：US11175282

    申请日：2005-07-07

    申请人： Hajime Oyama ,  Katsuhiro Aoki ,  Hiromitsu Takagaki ,  Hiroshi Ikeguchi ,  Yasuo Miyoshi

    发明人： Hajime Oyama ,  Katsuhiro Aoki ,  Hiromitsu Takagaki ,  Hiroshi Ikeguchi ,  Yasuo Miyoshi

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0896 ,  G03G15/0875 ,  G03G15/0877 ,  G03G2215/0822 ,  G03G2215/0838

    摘要： A developing device for developing a latent image formed on an image carrier of the present invention is generally made up of a developing section and a developer storing section. The developing section includes a developer carrier for conveying a one-component type developer deposited thereon, a feeding member for feeding the developer to the developer carrier, and a conveying member for conveying the developer toward the feeding member while agitating it. The developer storing section replenishes a developer stored therein to the developing section in a direction including at least a horizontal direction component. The developing section and developer storing section are formed with a plurality of openings in the lengthwise direction such that the replenishment of developer from the developer storing section to the developing section and the return of the developer from the latter to the former are executed via the openings.

    摘要翻译： 用于显影形成在本发明的图像载体上的潜像的显影装置通常由显影部分和显影剂储存部分组成。 显影部分包括用于输送沉积在其上的单组分型显影剂的显影剂载体，用于将显影剂供给到显影剂载体的进料构件和用于在搅拌的同时将显影剂输送到进料构件的输送构件。 显影剂储存部分在至少包括水平方向分量的方向上将存储在其中的显影剂补充到显影部分。 显影部分和显影剂储存部分在长度方向上形成有多个开口，使得显影剂从显影剂储存部分向显影部分的补充和显影剂从后者向前者的返回通过开口 。